What makes a glow stick glow?
Can something be a solid and a liquid at the same time?
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The idea is to give a qualitative introduction to entropy, as it pertains to thermodynamics and heat transfer.
We first introduce entropy informally, as a measure of...
Why does soap work to get the grease and dirt off of dirty pans and other things when water alone can't do the job?
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Equilibrium occurs when the overall state of a system is constant. Equilibrium can be static (nothing in the system is changing), or dynamic (little parts of the system are...
